This is it more or less, though I just sold the Steinberg CC121 since it was sitting a bit too much to justify it taking up the space, and I did add a second 27" monitor. I never seem to be satisfied with it, but the rack spaces in the desk are awesome for rack mounted pull-out trays. It has 4RU per side, a real lifesaver.
It's all running from a Mac Pro trashcan, Ableton and Cubase with the Komplete Kontrol S61 and Push 2. The only outboard gear is the Analog Four and Analog Rytm (but I'm waiting for the Analog Heat!)
I'll probably change the orientation again in a month, I tend to overthink this stuff quite a bit.